Collaborative Plan With File

Collaborative-Plan-With-File Workflow

Quick Start

Serial collaborative planning workflow using Plan Note architecture. Analyzes requirements, identifies sub-domains, generates detailed plans per domain serially, and detects conflicts across domains.

# Basic usage
/codex:collaborative-plan-with-file "Implement real-time notification system"

# With options
/codex:collaborative-plan-with-file "Refactor authentication module" --max-domains=4
/codex:collaborative-plan-with-file "Add payment gateway support" -y

Core workflow: Understand → Template → Serial Domain Planning → Conflict Detection → Completion

Key features:

• plan-note.md: Shared collaborative document with pre-allocated sections per domain
• Serial domain planning: Each sub-domain planned sequentially with full codebase context
• Conflict detection: Automatic file, dependency, and strategy conflict scanning
• No merge needed: Pre-allocated sections eliminate merge conflicts

Auto Mode

When --yes or -y: Auto-approve splits, skip confirmations.

Overview

This workflow enables structured planning through sequential phases:

1. Understanding & Template — Analyze requirements, identify sub-domains, create plan-note.md template
2. Serial Domain Planning — Plan each sub-domain sequentially using direct search and analysis
3. Conflict Detection — Scan plan-note.md for conflicts across all domains
4. Completion — Generate human-readable plan.md summary

The key innovation is the Plan Note architecture — a shared collaborative document with pre-allocated sections per sub-domain, eliminating merge conflicts even in serial execution.

┌─────────────────────────────────────────────────────────────────────────┐
│                    PLAN NOTE COLLABORATIVE PLANNING                      │
├─────────────────────────────────────────────────────────────────────────┤
│                                                                          │
│  Phase 1: Understanding & Template Creation                              │
│     ├─ Analyze requirements (inline search & analysis)                   │
│     ├─ Identify 2-5 sub-domains (focus areas)                            │
│     ├─ Create plan-note.md with pre-allocated sections                   │
│     └─ Assign TASK ID ranges (no conflicts)                              │
│                                                                          │
│  Phase 2: Serial Domain Planning                                         │
│     ┌──────────────┐                                                     │
│     │   Domain 1   │→ Explore codebase → Generate .task/TASK-*.json      │
│     │   Section 1  │→ Fill task pool + evidence in plan-note.md          │
│     └──────┬───────┘                                                     │
│     ┌──────▼───────┐                                                     │
│     │   Domain 2   │→ Explore codebase → Generate .task/TASK-*.json      │
│     │   Section 2  │→ Fill task pool + evidence in plan-note.md          │
│     └──────┬───────┘                                                     │
│     ┌──────▼───────┐                                                     │
│     │   Domain N   │→ ...                                                │
│     └──────────────┘                                                     │
│                                                                          │
│  Phase 3: Conflict Detection (Single Source)                             │
│     ├─ Parse plan-note.md (all sections)                                 │
│     ├─ Detect file/dependency/strategy conflicts                         │
│     └─ Update plan-note.md conflict section                              │
│                                                                          │
│  Phase 4: Completion (No Merge)                                          │
│     ├─ Collect domain .task/*.json → session .task/*.json                │
│     ├─ Generate plan.md (human-readable)                                 │
│     └─ Ready for execution                                               │
│                                                                          │
└─────────────────────────────────────────────────────────────────────────┘

Output Structure

Schema: cat ~/.ccw/workflows/cli-templates/schemas/task-schema.json

{projectRoot}/.workflow/.planning/CPLAN-{slug}-{date}/
├── plan-note.md                  # ⭐ Core: Requirements + Tasks + Conflicts
├── requirement-analysis.json     # Phase 1: Sub-domain assignments
├── domains/                      # Phase 2: Per-domain plans
│   ├── {domain-1}/
│   │   └── .task/                # Per-domain task JSON files
│   │       ├── TASK-001.json
│   │       └── ...
│   ├── {domain-2}/
│   │   └── .task/
│   │       ├── TASK-101.json
│   │       └── ...
│   └── ...
├── plan.json                     # Plan overview (plan-overview-base-schema.json)
├── .task/                        # ⭐ Merged task JSON files (all domains)
│   ├── TASK-001.json
│   ├── TASK-101.json
│   └── ...
├── conflicts.json                # Phase 3: Conflict report
└── plan.md                       # Phase 4: Human-readable summary

Output Artifacts

Phase 1: Understanding & Template

Phase 2: Serial Domain Planning

Phase 3: Conflict Detection

Phase 4: Completion

Implementation Details

Session Initialization

Step 0: Initialize Session

const getUtc8ISOString = () => new Date(Date.now() + 8 * 60 * 60 * 1000).toISOString()

// Detect project root
const projectRoot = Bash(`git rev-parse --show-toplevel 2>/dev/null || pwd`).trim()

// Parse arguments
const autoMode = $ARGUMENTS.includes('--yes') || $ARGUMENTS.includes('-y')
const maxDomainsMatch = $ARGUMENTS.match(/--max-domains=(\d+)/)
const maxDomains = maxDomainsMatch ? parseInt(maxDomainsMatch[1]) : 5

// Clean task description
const taskDescription = $ARGUMENTS
  .replace(/--yes|-y|--max-domains=\d+/g, '')
  .trim()

const slug = taskDescription.toLowerCase()
  .replace(/[^a-z0-9\u4e00-\u9fa5]+/g, '-')
  .substring(0, 30)
const dateStr = getUtc8ISOString().substring(0, 10)
const sessionId = `CPLAN-${slug}-${dateStr}`
const sessionFolder = `${projectRoot}/.workflow/.planning/${sessionId}`

// Auto-detect continue: session folder + plan-note.md exists → continue mode
// If continue → load existing state and resume from incomplete phase
Bash(`mkdir -p ${sessionFolder}/domains`)

Session Variables:

• sessionId: Unique session identifier
• sessionFolder: Base directory for all artifacts
• maxDomains: Maximum number of sub-domains (default: 5)
• autoMode: Boolean for auto-confirmation

Auto-Detection: If session folder exists with plan-note.md, automatically enters continue mode.

Phase 1: Understanding & Template Creation

Objective: Analyze task requirements, identify parallelizable sub-domains, and create the plan-note.md template with pre-allocated sections.

Step 1.1: Analyze Task Description

Use built-in tools directly to understand the task scope and identify sub-domains.

Analysis Activities:

1. Search for references — Find related documentation, README files, and architecture guides
   • Use: mcp__ace-tool__search_context, Grep, Glob, Read
   • Run: ccw spec load --category planning (if spec system available)
2. Extract task keywords — Identify key terms and concepts from the task description
3. Identify ambiguities — List any unclear points or multiple possible interpretations
4. Clarify with user — If ambiguities found, use AskUserQuestion for clarification
5. Identify sub-domains — Split into 2-{maxDomains} parallelizable focus areas based on task complexity
6. Assess complexity — Evaluate overall task complexity (Low/Medium/High)

Sub-Domain Identification Patterns:

Guideline: Prioritize identifying latest documentation (README, design docs, architecture guides). When ambiguities exist, ask user for clarification instead of assuming interpretations.

Step 1.2: Create plan-note.md Template

Generate a structured template with pre-allocated sections for each sub-domain.

plan-note.md Structure:

---
session_id: CPLAN-{slug}-{date}
original_requirement: "{task description}"
created_at: "{ISO timestamp}"
complexity: Low | Medium | High
sub_domains: ["{domain-1}", "{domain-2}", ...]
domain_task_id_ranges:
  "{domain-1}": [1, 100]
  "{domain-2}": [101, 200]
status: planning
---

Sections:

• ## 需求理解 — Core objectives, key points, constraints, split strategy
• ## 任务池 - {Domain N} — Pre-allocated task section per domain (TASK-{range})
• ## 依赖关系 — Auto-generated after all domains complete
• ## 冲突标记 — Populated in Phase 3
• ## 上下文证据 - {Domain N} — Evidence section per domain

TASK ID Range Allocation: Each domain receives a non-overlapping range of 100 IDs (e.g., Domain 1: TASK-001100, Domain 2: TASK-101200).

Step 1.3: Generate requirement-analysis.json

Write(`${sessionFolder}/requirement-analysis.json`, JSON.stringify({
  session_id: sessionId,
  original_requirement: taskDescription,
  complexity: complexity,  // Low | Medium | High
  sub_domains: subDomains.map(sub => ({
    focus_area: sub.focus_area,
    description: sub.description,
    task_id_range: sub.task_id_range,
    estimated_effort: sub.estimated_effort,
    dependencies: sub.dependencies  // cross-domain dependencies
  })),
  total_domains: subDomains.length
}, null, 2))

Success Criteria:

• Latest documentation identified and referenced (if available)
• Ambiguities resolved via user clarification (if any found)
• 2-{maxDomains} clear sub-domains identified
• Each sub-domain can be planned independently
• Plan Note template includes all pre-allocated sections
• TASK ID ranges have no overlap (100 IDs per domain)
• Requirements understanding is comprehensive

Phase 2: Serial Sub-Domain Planning

Objective: Plan each sub-domain sequentially, generating detailed plans and updating plan-note.md.

Execution Model: Serial inline execution — each domain explored and planned directly using search tools, one at a time.

Step 2.1: User Confirmation (unless autoMode)

Display identified sub-domains and confirm before starting.

if (!autoMode) {
  AskUserQuestion({
    questions: [{
      question: `已识别 ${subDomains.length} 个子领域:\n${subDomains.map((s, i) =>
        `${i+1}. ${s.focus_area}: ${s.description}`).join('\n')}\n\n确认开始规划?`,
      header: "Confirm",
      multiSelect: false,
      options: [
        { label: "开始规划", description: "逐域进行规划" },
        { label: "调整拆分", description: "修改子领域划分" },
        { label: "取消", description: "退出规划" }
      ]
    }]
  })
}

Step 2.2: Serial Domain Planning

For each sub-domain, execute the full planning cycle inline:

for (const sub of subDomains) {
  // 1. Create domain directory with .task/ subfolder
  Bash(`mkdir -p ${sessionFolder}/domains/${sub.focus_area}/.task`)

  // 2. Explore codebase for domain-relevant context
  //    Use: mcp__ace-tool__search_context, Grep, Glob, Read
  //    Focus on:
  //      - Modules/components related to this domain
  //      - Existing patterns to follow
  //      - Integration points with other domains
  //      - Architecture constraints

  // 3. Generate task JSON records (following task-schema.json)
  const domainTasks = [
    // For each task within the assigned ID range:
    {
      id: `TASK-${String(sub.task_id_range[0]).padStart(3, '0')}`,
      title: "...",
      description: "...",                 // scope/goal of this task
      type: "feature",                    // infrastructure|feature|enhancement|fix|refactor|testing
      priority: "medium",                 // high|medium|low
      effort: "medium",                   // small|medium|large
      scope: "...",                       // Brief scope description
      depends_on: [],                     // TASK-xxx references
      convergence: {
        criteria: ["... (testable)"],     // Testable conditions
        verification: "... (executable)", // Command or steps
        definition_of_done: "... (business language)"
      },
      files: [                            // Files to modify
        {
          path: "...",
          action: "modify",              // modify|create|delete
          changes: ["..."],               // Change descriptions
          conflict_risk: "low"            // low|medium|high
        }
      ],
      source: {
        tool: "collaborative-plan-with-file",
        session_id: sessionId,
        original_id: `TASK-${String(sub.task_id_range[0]).padStart(3, '0')}`
      }
    }
    // ... more tasks
  ]

  // 4. Write individual task JSON files (one per task)
  domainTasks.forEach(task => {
    Write(`${sessionFolder}/domains/${sub.focus_area}/.task/${task.id}.json`,
      JSON.stringify(task, null, 2))
  })

  // 5. Sync summary to plan-note.md
  //    Read current plan-note.md
  //    Locate pre-allocated sections:
  //      - Task Pool:  "## 任务池 - ${toTitleCase(sub.focus_area)}"
  //      - Evidence:   "## 上下文证据 - ${toTitleCase(sub.focus_area)}"
  //    Fill with task summaries and evidence
  //    Write back plan-note.md
}

Task Summary Format (for plan-note.md task pool sections):

### TASK-{ID}: {Title} [{focus-area}]
- **状态**: pending
- **类型**: feature/fix/refactor/enhancement/testing/infrastructure
- **优先级**: high/medium/low
- **工作量**: small/medium/large
- **依赖**: TASK-xxx (if any)
- **范围**: Brief scope description
- **修改文件**: `file-path` (action): change summary
- **收敛标准**:
  - criteria 1
  - criteria 2
- **验证方式**: executable command or steps
- **完成定义**: business language definition

Evidence Format (for plan-note.md evidence sections):

- **相关文件**: file list with relevance
- **现有模式**: patterns identified
- **约束**: constraints discovered

Domain Planning Rules:

• Each domain modifies ONLY its pre-allocated sections in plan-note.md
• Use assigned TASK ID range exclusively
• Include convergence criteria for each task (criteria + verification + definition_of_done)
• Include files[] with conflict_risk assessment per file
• Reference cross-domain dependencies explicitly
• Each task record must be self-contained (can be independently consumed by unified-execute)

Step 2.3: Verify plan-note.md Consistency

After all domains are planned, verify the shared document.

Verification Activities:

1. Read final plan-note.md
2. Verify all task pool sections are populated
3. Verify all evidence sections are populated
4. Validate TASK ID uniqueness across all domains
5. Check for any section format inconsistencies

Success Criteria:

• domains/{domain}/.task/TASK-*.json created for each domain (one file per task)
• Each task has convergence (criteria + verification + definition_of_done)
• plan-note.md updated with all task pools and evidence sections
• Task summaries follow consistent format
• No TASK ID overlaps across domains

Phase 3: Conflict Detection

Objective: Analyze plan-note.md for conflicts across all domain contributions.

Step 3.1: Parse plan-note.md

Extract all tasks from all "任务池" sections and domain .task/*.json files.

// parsePlanNote(markdown)
//   - Extract YAML frontmatter between `---` markers
//   - Scan for heading patterns: /^(#{2,})\s+(.+)$/
//   - Build sections array: { level, heading, start, content }
//   - Return: { frontmatter, sections }

// Also load all domain .task/*.json for detailed data
// loadDomainTasks(sessionFolder, subDomains):
//   const allTasks = []
//   for (const sub of subDomains) {
//     const taskDir = `${sessionFolder}/domains/${sub.focus_area}/.task`
//     const taskFiles = Glob(`${taskDir}/TASK-*.json`)
//     taskFiles.forEach(file => {
//       allTasks.push(JSON.parse(Read(file)))
//     })
//   }
//   return allTasks

// extractTasksFromSection(content, sectionHeading)
//   - Match: /### (TASK-\d+):\s+(.+?)\s+\[(.+?)\]/
//   - For each: extract taskId, title, author
//   - Parse details: status, type, priority, effort, depends_on, files, convergence
//   - Return: array of task objects

// parseTaskDetails(content)
//   - Extract via regex:
//     - /\*\*状态\*\*:\s*(.+)/ → status
//     - /\*\*类型\*\*:\s*(.+)/ → type
//     - /\*\*优先级\*\*:\s*(.+)/ → priority
//     - /\*\*工作量\*\*:\s*(.+)/ → effort
//     - /\*\*依赖\*\*:\s*(.+)/ → depends_on (extract TASK-\d+ references)
//   - Extract files: /- `([^`]+)` \((\w+)\):\s*(.+)/ → path, action, change
//   - Return: { status, type, priority, effort, depends_on[], files[], convergence }

Step 3.2: Detect Conflicts

Scan all tasks for three categories of conflicts.

Conflict Types:

Detection Functions:

// detectFileConflicts(tasks)
//   Build fileMap: { "file-path": [{ task_id, task_title, source_domain, changes }] }
//   For each file with modifications from multiple domains:
//     → conflict: type='file_conflict', severity='high'
//     → include: file, tasks_involved, domains_involved, changes
//     → resolution: 'Coordinate modification order or merge changes'

// detectDependencyCycles(tasks)
//   Build dependency graph: { taskId: [dependsOn_taskIds] }
//   DFS with recursion stack to detect cycles:
function detectCycles(tasks) {
  const graph = new Map(tasks.map(t => [t.id, t.depends_on || []]))
  const visited = new Set(), inStack = new Set(), cycles = []
  function dfs(node, path) {
    if (inStack.has(node)) { cycles.push([...path, node].join(' → ')); return }
    if (visited.has(node)) return
    visited.add(node); inStack.add(node)
    ;(graph.get(node) || []).forEach(dep => dfs(dep, [...path, node]))
    inStack.delete(node)
  }
  tasks.forEach(t => { if (!visited.has(t.id)) dfs(t.id, []) })
  return cycles
}

// detectStrategyConflicts(tasks)
//   Group tasks by files they modify (from task.files[].path)
//   For each file with tasks from multiple domains:
//     Filter for tasks with files[].conflict_risk === 'high' or 'medium'
//     If >1 high-risk from different domains:
//       → conflict: type='strategy_conflict', severity='medium'
//       → resolution: 'Review approaches and align on single strategy'

Step 3.3: Generate Conflict Artifacts

Write conflict results and update plan-note.md.

// 1. Write conflicts.json
Write(`${sessionFolder}/conflicts.json`, JSON.stringify({
  detected_at: getUtc8ISOString(),
  total_tasks: allTasks.length,
  total_domains: subDomains.length,
  total_conflicts: allConflicts.length,
  conflicts: allConflicts  // { type, severity, tasks_involved, description, suggested_resolution }
}, null, 2))

// 2. Update plan-note.md "## 冲突标记" section
// generateConflictMarkdown(conflicts):
//   If empty: return '✅ 无冲突检测到'
//   For each conflict:
//     ### CONFLICT-{padded_index}: {description}
//     - **严重程度**: critical | high | medium
//     - **涉及任务**: TASK-xxx, TASK-yyy
//     - **涉及领域**: domain-a, domain-b
//     - **问题详情**: (based on conflict type)
//     - **建议解决方案**: ...
//     - **决策状态**: [ ] 待解决

// replaceSectionContent(markdown, sectionHeading, newContent):
//   Find section heading position via regex
//   Find next heading of same or higher level
//   Replace content between heading and next section
//   If section not found: append at end

Success Criteria:

• All tasks extracted and analyzed
• conflicts.json written with detection results
• plan-note.md updated with conflict markers
• All conflict types checked (file, dependency, strategy)

Phase 4: Completion

Objective: Generate human-readable plan summary and finalize workflow.

Step 4.1: Collect Domain .task/*.json to Session .task/

Copy all per-domain task JSON files into a single session-level .task/ directory.

// Create session-level .task/ directory
Bash(`mkdir -p ${sessionFolder}/.task`)

// Collect all domain task files
for (const sub of subDomains) {
  const taskDir = `${sessionFolder}/domains/${sub.focus_area}/.task`
  const taskFiles = Glob(`${taskDir}/TASK-*.json`)
  taskFiles.forEach(file => {
    const filename = path.basename(file)
    // Copy domain task file to session .task/ directory
    Bash(`cp ${file} ${sessionFolder}/.task/${filename}`)
  })
}

Step 4.2: Generate plan.json

Generate a plan overview following the plan-overview-base-schema.

// Generate plan.json (plan-overview-base-schema)
const allTaskFiles = Glob(`${sessionFolder}/.task/TASK-*.json`)
const taskIds = allTaskFiles.map(f => JSON.parse(Read(f)).id).sort()

// Guard: skip plan.json if no tasks generated
if (taskIds.length === 0) {
  console.warn('No tasks generated; skipping plan.json')
} else {

const planOverview = {
  summary: `Collaborative plan for: ${taskDescription}`,
  approach: `Multi-domain planning across ${subDomains.length} sub-domains: ${subDomains.map(s => s.focus_area).join(', ')}`,
  task_ids: taskIds,
  task_count: taskIds.length,
  complexity: complexity,
  recommended_execution: "Agent",
  _metadata: {
    timestamp: getUtc8ISOString(),
    source: "direct-planning",
    planning_mode: "direct",
    plan_type: "collaborative",
    schema_version: "2.0"
  }
}
Write(`${sessionFolder}/plan.json`, JSON.stringify(planOverview, null, 2))

} // end guard

Step 4.3: Generate plan.md

Create a human-readable summary from plan-note.md content.

plan.md Structure:

const planMd = `# Collaborative Plan

**Session**: ${sessionId}
**Requirement**: ${taskDescription}
**Created**: ${getUtc8ISOString()}
**Complexity**: ${complexity}
**Domains**: ${subDomains.length}

## 需求理解

${requirementSection}

## 子领域拆分

| # | Focus Area | Description | TASK Range | Effort |
|---|-----------|-------------|------------|--------|
${subDomains.map((s, i) => `| ${i+1} | ${s.focus_area} | ${s.description} | ${s.task_id_range[0]}-${s.task_id_range[1]} | ${s.estimated_effort} |`).join('\n')}

## 任务概览

${subDomains.map(sub => {
  const domainTasks = allTasks.filter(t => t.source?.original_id?.startsWith('TASK') && t.source?.session_id === sessionId)
  return `### ${sub.focus_area}\n\n` +
    domainTasks.map(t => `- **${t.id}**: ${t.title} (${t.type}, ${t.effort}) ${t.depends_on.length ? '← ' + t.depends_on.join(', ') : ''}`).join('\n')
}).join('\n\n')}

## 冲突报告

${allConflicts.length === 0
  ? '✅ 无冲突检测到'
  : allConflicts.map(c => `- **${c.type}** (${c.severity}): ${c.description}`).join('\n')}

## 执行

\`\`\`bash
/workflow:unified-execute-with-file PLAN="${sessionFolder}/.task/"
\`\`\`

**Session artifacts**: \`${sessionFolder}/\`
`
Write(`${sessionFolder}/plan.md`, planMd)

Step 4.4: Display Completion Summary

Present session statistics and next steps.

// Display:
// - Session ID and directory path
// - Total domains planned
// - Total tasks generated
// - Conflict status (count and severity)
// - Execution command for next step

if (!autoMode) {
  AskUserQuestion({
    questions: [{
      question: `规划完成:\n- ${subDomains.length} 个子领域\n- ${allTasks.length} 个任务\n- ${allConflicts.length} 个冲突\n\n下一步:`,
      header: "Next Step",
      multiSelect: false,
      options: [
        { label: "Execute Plan", description: "使用 unified-execute 执行计划" },
        { label: "Review Conflicts", description: "查看并解决冲突" },
        { label: "Export", description: "导出 plan.md" },
        { label: "Done", description: "保存产物，稍后执行" }
      ]
    }]
  })
}

Step 4.5: Sync Session State

$session-sync -y "Plan complete: {domains} domains, {tasks} tasks"

Updates specs/*.md with planning insights and project-tech.json with planning session entry.

Success Criteria:

• plan.md generated with complete summary
• .task/TASK-*.json collected at session root (consumable by unified-execute)
• All artifacts present in session directory
• Session state synced via $session-sync
• User informed of completion and next steps

Configuration

Iteration Patterns

New Planning Session

User initiates: TASK="task description"
   ├─ No session exists → New session mode
   ├─ Analyze task with inline search tools
   ├─ Identify sub-domains
   ├─ Create plan-note.md template
   ├─ Generate requirement-analysis.json
   │
   ├─ Serial domain planning:
   │   ├─ Domain 1: explore → .task/TASK-*.json → fill plan-note.md
   │   ├─ Domain 2: explore → .task/TASK-*.json → fill plan-note.md
   │   └─ Domain N: ...
   │
   ├─ Collect domain .task/*.json → session .task/
   │
   ├─ Verify plan-note.md consistency
   ├─ Detect conflicts
   ├─ Generate plan.md summary
   └─ Report completion

Continue Existing Session

User resumes: TASK="same task"
   ├─ Session exists → Continue mode
   ├─ Load plan-note.md and requirement-analysis.json
   ├─ Identify incomplete domains (empty task pool sections)
   ├─ Plan remaining domains serially
   └─ Continue with conflict detection

Error Handling & Recovery

Best Practices

Before Starting Planning

1. Clear Task Description: Detailed requirements lead to better sub-domain splitting
2. Reference Documentation: Ensure latest README and design docs are identified during Phase 1
3. Clarify Ambiguities: Resolve unclear requirements before committing to sub-domains

During Planning

1. Review Plan Note: Check plan-note.md between domains to verify progress
2. Verify Independence: Ensure sub-domains are truly independent and have minimal overlap
3. Check Dependencies: Cross-domain dependencies should be documented explicitly
4. Inspect Details: Review domains/{domain}/.task/TASK-*.json for specifics when needed
5. Consistent Format: Follow task summary format strictly across all domains
6. TASK ID Isolation: Use pre-assigned non-overlapping ranges to prevent ID conflicts

After Planning

1. Resolve Conflicts: Address high/critical conflicts before execution
2. Review Summary: Check plan.md for completeness and accuracy
3. Validate Tasks: Ensure all tasks have clear scope and modification targets

When to Use

Use collaborative-plan-with-file when:

• A complex task spans multiple sub-domains (backend + frontend + database, etc.)
• Need structured multi-domain task breakdown with conflict detection
• Planning a feature that touches many parts of the codebase
• Want pre-allocated section organization for clear domain separation

Use lite-plan when:

• Single domain, clear task with no sub-domain splitting needed
• Quick planning without conflict detection

Use req-plan-with-file when:

• Requirement-level progressive roadmap needed (MVP → iterations)
• Higher-level decomposition before detailed planning

Use analyze-with-file when:

• Need in-depth analysis before planning
• Understanding and discussion, not task generation

Now execute collaborative-plan-with-file for: $ARGUMENTS